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Repair the power supply PA-1650-66 (+19 AT, 3.42 BUT) ASUS laptop

article, the author describes the power supply circuit model PA-1650-66 ASUS laptop, with the output voltage +19 The maximum permissible current 3.42 BUT, and describes its repair. Scheme was the author of the circuit board inspection. This power supply (IP), Chinese manufacturing,… Continue Reading

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Repair of switching power supply DSO-0121-03B 24-port switch models LG LS-3124A

The article lists the specifications, principle of operation, assembly and schematic circuit, assignment of radio and repair switching power supply DS0-0121-03B, Switch LS-3124A company LG.Statya intended both for DIY repairers, and for ordinary computer users, who themselves want to repair damaged power supply… Continue Reading

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USB-Drives. Device, malfunction, restoration and repair

Flash memory (English. Flash–Memory) – a variety of solid-state semiconductor nonvolatile writable memory. It can be read many times, but writing in this memory can be only a limited number of times (usually about 10000 time). Flash memory – It is the basis of USB-drives, which users affectionately call… Continue Reading

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What is the keyboard "spies"

Keyloggers form a category of malware, representing a great threat to the safety of the user. They are not viruses, t. to. does not have the ability to reproduce. definition. Shpiony- Keyboard is a program for covert recording of information about the user presses. The term "keylogger"… Continue Reading